.head{
    height: 100vh;
    display: flex;
    flex-direction: column;
    header{
        height: 50px;
        border-bottom: 1px solid #ccc;
        input{
            width: 100%;
            height: 100%;
            border: none;
            outline: none;
            padding: 0 15px;
        }
    }
    .list{
        flex: 1;
        overflow: auto;
        li{
            height: 40px;
            line-height: 40px;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
            border-bottom: 1px dashed #ccc;
            padding-left: 10px;
        }
    }
}